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Popular >

|1-2x|<9

Solution

∣ 1 - 2 x ∣ < 9

Solution

- 4 < x < 5

+1

Interval Notation

(- 4, 5)

Solution steps

∣ 1 - 2 x ∣ < 9

Apply absolute rule: If

∣ u ∣ < a, a > 0

then

- a < u < a

- 9 < 1 - 2 x < 9

1 - 2 x > - 9 and 1 - 2 x < 9

x < 5 and x > - 4

Merge Overlapping Intervals

- 4 < x < 5

Graph

Popular Examples

x^{2} + 2 x + 6 = 0

2/7 v+4/5 = 6/5 v-4/5

\frac{2}{7} v + \frac{4}{5} = \frac{6}{5} v - \frac{4}{5}

factor 40xy+15y^2 factor

40 x y + 15 y^{2}

(2b-1)/2-(1+5b)/4 <0

\frac{2 b - 1}{2} - \frac{1 + 5 b}{4} < 0

simplify 13/78*12/5 simplify

\frac{13}{78} \cdot \frac{12}{5}

Frequently Asked Questions (FAQ)

What is |1-2x|<9 ?
The solution to |1-2x|<9 is -4<x<5